Sharing indicators

Local indicators, shared packages and packages calculated on the server.

The same indicator can reach a chart in three ways.

	Local	Shared package	Server package
Who can use it	you	the users it is shared with	the users it is shared with
Where it is calculated	your chart	the chart of each user	the server
The dll is on the user’s computer	yes, in the indicators folder	yes, managed by Deepchart	no
Shown in the indicator list under	Personal	Shared	Shared

Local

What the Quickstart builds: a dll in Documents\Deepchart\Indicators, loaded only for your account. This is how you develop and test.

Shared package

A package is a set of indicators published for other users. Deepchart downloads the package of each user and keeps it for them: there is nothing to copy by hand, and a new version replaces the old one.

Each chart calculates the indicators itself, so everything an indicator can do locally works here too, desktop only features included.

Server package

A package whose indicators use only the portable API can be calculated on the server. The chart of the user subscribes to the indicator with its symbol, its bars and the parameters the user chose, and receives what the indicator draws.

• The code of the indicator never leaves the server.
• Charts with the same symbol, bars and parameters share one calculation.
• The user still chooses parameters, colors and styles: they are applied by each chart.

Whether a package is calculated on the server is decided when it is published, from its code: a package which uses a desktop only member, or the trades of the history, is a desktop package.

Publishing packages is not open to every developer yet. This page explains how the pieces fit, so you can write indicators which are ready for it.